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Gehan A. J. Amaratunga

Gehan A. J. Amaratunga

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Materials Science
UK
2022

D-Index & Metrics

Materials Science

D-Index
93
Citations
38205
World Ranking
1435
National Ranking
62

Research.com Recognitions

  • 2022 - Research.com Materials Science in United Kingdom Leader Award
  • 2004 - Fellow of the Royal Academy of Engineering (UK)

Overview

What is he best known for?

The fields of study he is best known for:

  • Quantum mechanics
  • Semiconductor
  • Electron

His main research concerns Carbon nanotube, Nanotechnology, Amorphous carbon, Optoelectronics and Analytical chemistry. His Carbon nanotube study incorporates themes from Plasma-enhanced chemical vapor deposition and Field electron emission. As a member of one scientific family, Gehan A. J. Amaratunga mostly works in the field of Nanotechnology, focusing on Electrode and, on occasion, Nanoelectronics.

His research in Amorphous carbon intersects with topics in Carbon film, Thin film, Spectroscopy, Amorphous solid and Band gap. His Optoelectronics study frequently intersects with other fields, such as Ohmic contact. The Analytical chemistry study combines topics in areas such as Absorption, Space charge, Electrical resistivity and conductivity, Carbon and Emission spectrum.

His most cited work include:

  • Superhydrophobic Carbon Nanotube Forests (1325 citations)
  • Growth process conditions of vertically aligned carbon nanotubes using plasma enhanced chemical vapor deposition (920 citations)
  • Single-wall carbon nanotube/conjugated polymer photovoltaic devices (736 citations)

What are the main themes of his work throughout his whole career to date?

Optoelectronics, Nanotechnology, Carbon nanotube, Electrical engineering and Analytical chemistry are his primary areas of study. As part of his studies on Optoelectronics, Gehan A. J. Amaratunga often connects relevant areas like Diamond. His Nanotechnology research is multidisciplinary, incorporating elements of Chemical engineering and Electrode.

His Carbon nanotube study integrates concerns from other disciplines, such as Field electron emission and Chemical vapor deposition. His Field electron emission research includes themes of Cathode and Current density. His studies in Analytical chemistry integrate themes in fields like Thin film and Amorphous carbon.

He most often published in these fields:

  • Optoelectronics (35.32%)
  • Nanotechnology (19.76%)
  • Carbon nanotube (19.49%)

What were the highlights of his more recent work (between 2015-2021)?

  • Chemical engineering (8.93%)
  • Electric power system (3.11%)
  • Mathematical optimization (2.17%)

In recent papers he was focusing on the following fields of study:

Gehan A. J. Amaratunga spends much of his time researching Chemical engineering, Electric power system, Mathematical optimization, Control theory and Optoelectronics. His Chemical engineering study also includes fields such as

  • Oxide, which have a strong connection to Thermogravimetric analysis,
  • Photocatalysis which intersects with area such as Scanning electron microscope. His biological study deals with issues like Power, which deal with fields such as Wind power and Turbine.

His biological study spans a wide range of topics, including Differential evolution, Crest factor, Voltage, Photovoltaic system and Renewable energy. His work deals with themes such as Layer and Carbon nanotube, which intersect with Optoelectronics. His Supercapacitor study combines topics from a wide range of disciplines, such as Carbon, Nanotechnology and Energy storage.

Between 2015 and 2021, his most popular works were:

  • Empirical Mode Decomposition based ensemble deep learning for load demand time series forecasting (190 citations)
  • Random vector functional link network for short-term electricity load demand forecasting (146 citations)
  • Urea-Hydroxyapatite Nanohybrids for Slow Release of Nitrogen (118 citations)

In his most recent research, the most cited papers focused on:

  • Quantum mechanics
  • Semiconductor
  • Electrical engineering

His scientific interests lie mostly in Mathematical optimization, Nanoparticle, Chemical engineering, Electric power system and Differential evolution. Gehan A. J. Amaratunga has researched Mathematical optimization in several fields, including Power, AC power and Energy market. His Nanoparticle research includes elements of Phosphorus, Drug delivery, Cubic zirconia, Composite number and Solubility.

Gehan A. J. Amaratunga interconnects Photocatalysis, Calcination, Electrospinning and Scanning electron microscope in the investigation of issues within Chemical engineering. His Differential evolution research incorporates elements of Voltage, Control theory and Search algorithm. His Carbon nanotube study introduces a deeper knowledge of Nanotechnology.

Best Publications

  • Superhydrophobic Carbon Nanotube Forests

    Kenneth K. S. Lau;José Bico;Kenneth B. K. Teo;Manish Chhowalla

  • Growth process conditions of vertically aligned carbon nanotubes using plasma enhanced chemical vapor deposition

    M. Chhowalla;K. B. K. Teo;C. Ducati;N. L. Rupesinghe

  • Full-colour quantum dot displays fabricated by transfer printing

    Tae Ho Kim;Kyung Sang Cho;Eun Kyung Lee;Sang Jin Lee

  • Flexible Electronics: The Next Ubiquitous Platform

    A. Nathan;A. Ahnood;M. T. Cole;Sungsik Lee

  • Thin films of fullerene-like MoS2 nanoparticles with ultra-low friction and wear

    Manish Chhowalla;Gehan A. J. Amaratunga

  • Properties of filtered-ion-beam-deposited diamondlike carbon as a function of ion energy

    P. J. Fallon;V. S. Veerasamy;C. A. Davis;J. Robertson

  • Single-wall carbon nanotube/conjugated polymer photovoltaic devices

    E. Kymakis;G. A. J. Amaratunga

  • Low-threshold cold cathodes made of nitrogen-doped chemical-vapour-deposited diamond

    Ken Okano;Satoshi Koizumi;S. Ravi P. Silva;Gehan A. J. Amaratunga

  • Synthesis of carbon 'onions' in water

    N. Sano;H. Wang;M. Chhowalla;I. Alexandrou

  • Nitrogen containing hydrogenated amorphous carbon for thin-film field emission cathodes

    Gehan A. J. Amaratunga;S. R. P. Silva

  • Urea-Hydroxyapatite Nanohybrids for Slow Release of Nitrogen

    Nilwala Kottegoda;Nilwala Kottegoda;Chanaka Sandaruwan;Gayan Priyadarshana;Asitha Siriwardhana

  • Properties of carbon onions produced by an arc discharge in water

    N. Sano;H. Wang;I. Alexandrou;Manishkumar Chhowalla

  • Carbon nanotubes as field emission sources

    W. I. Milne;K. B. K. Teo;G. A. J. Amaratunga;P. Legagneux

  • High open-circuit voltage photovoltaic devices from carbon-nanotube-polymer composites

    E. Kymakis;I. Alexandrou;G. A. J. Amaratunga

  • Silicon surface tunnel transistor

    William M. Reddick;Gehan A. J. Amaratunga

  • Uniform patterned growth of carbon nanotubes without surface carbon

    K. B. K. Teo;M. Chhowalla;G. A. J. Amaratunga;W. I. Milne

  • Microwave devices: carbon nanotubes as cold cathodes.

    Kenneth B. K. Teo;Eric Minoux;Ludovic Hudanski;Franck Peauger

  • Influence of ion energy and substrate temperature on the optical and electronic properties of tetrahedral amorphous carbon (ta-C) films

    M. Chhowalla;J. Robertson;C. W. Chen;S. R. P. Silva

  • Single-walled carbon nanotube–polymer composites: electrical, optical and structural investigation

    E Kymakis;I Alexandou;G.A.J Amaratunga

  • Nitrogen modification of hydrogenated amorphous carbon films

    S. R. P. Silva;J. Robertson;G. A. J. Amaratunga;B. Rafferty

Frequent Co-Authors

Florin Udrea
Florin Udrea University of Cambridge
William I. Milne
William I. Milne University of Cambridge
Manish Chhowalla
Manish Chhowalla University of Cambridge
Haider Butt
Haider Butt Khalifa University
Kenneth B. K. Teo
Kenneth B. K. Teo Aixtron (United Kingdom)
Husnu Emrah Unalan
Husnu Emrah Unalan Middle East Technical University
Timothy D. Wilkinson
Timothy D. Wilkinson University of Cambridge
John Robertson
John Robertson University of Cambridge
David R. McKenzie
David R. McKenzie University of Sydney

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